Description

Modernize codebase tooling, dependencies, and Go idioms. Add support for extended docker buildx bake cache configuration via SQUADRON_BAKE_CACHE_FROM and SQUADRON_BAKE_CACHE_TO environment variables.

Type of Change

• 🐛 Bug fix
• ✨ New feature
• 💥 Breaking change
• 📝 Documentation
• ♻️ Refactoring
• ⚡ Performance
• ✅ Tests
• 🔧 Build/CI

Changes

• Extended bake cache support: Add default case in Bakefile() that reads SQUADRON_BAKE_CACHE_FROM and SQUADRON_BAKE_CACHE_TO env vars, supporting semicolon-delimited Go template strings for flexible cache-from/cache-to configuration on any cache type
• New util.StringToMap helper to parse key=value,key2=value2 strings into maps (used for bake cache entries)
• Go idiom modernization: Replace strings.HasPrefix + strings.TrimPrefix with strings.CutPrefix; use strings.Builder in SprintError
• Dependency updates: Go 1.25.4 → 1.26.1, go-git v5/v6, k8s.io v0.34 → v0.35, pterm, golangci-lint 2.7 → 2.11, biome 2.3 → 2.4, lefthook 2.0 → 2.1, bun 1.3.4 → 1.3.10, and many transitive deps
• Config file renames: .golangci.yml → .golangci.yaml, .goreleaser.yml → .goreleaser.yaml
• GoReleaser improvements: Add project_name, -trimpath and -tags=safe flags, exclude windows/arm64
• Makefile improvements: Add go.work support, generate target, test.race target, reorganize sections
• Lefthook: Add Claude rules sync reminders on Makefile/.golangci.yaml changes; switch lint pre-commit to golangci-lint fmt
• Dependabot: Add Docker ecosystem, shorten commit prefix to sec(deps)
• Enable modernize linter in golangci-lint config

Checklist

• My code adheres to the coding and style guidelines of the project.
• I have performed a self-review of my own code.
• I have commented on my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.

Notes

The SQUADRON_BAKE_CACHE_FROM / SQUADRON_BAKE_CACHE_TO env vars accept semicolon-separated Go template strings with {{.Squadron}}, {{.Unit}}, and {{.Bake}} data available. Each string is prepended with the cache type= prefix automatically.